Stone powder sand making device for cement preparation
By filtering and discharging dust through a gas collection pipe, filter screen, and fan blade structure, the dust problem during the use of stone powder sand making equipment is solved, achieving the effects of reducing environmental pollution and improving cleaning convenience.
Patent Information
- Application Number
- CN202520437840.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing stone powder sand making equipment generates dust during operation, which affects the environment and workers' health.
A stone powder sand making device for cement preparation was designed. It adopts a structure of air collection pipe, filter screen and fan blade. It filters and discharges dust through negative pressure. The detachable sleeve facilitates the cleaning of the filter screen, and the cloth cover forms a barrier to reduce dust discharge.
It effectively reduces the impact of dust on the environment and worker health, and improves production safety and ease of cleaning.
Smart Images

Figure CN223931574U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stone powder sand making technology, specifically to a stone powder sand making device for cement preparation. Background Technology
[0002] In cement production, some materials need to be crushed into sand using stone powder, which can then be used as a raw material. Therefore, stone powder sand making equipment is a commonly used production equipment in cement production. The patent with authorization announcement number CN216094145U and titled "A Low-Energy Stone Powder Sand Making Device for Cement Preparation" includes a feed hopper, grinding tube, casing, base, discharge port, drive shaft, and first bushing. The feed hopper is located at the upper end of the casing, and the grinding tube is located on the inner wall of the upper end of the casing. A motor is located at the bottom end of the casing, and a drive shaft penetrating the interior of the casing is located at the upper end of the motor. An impeller and grinding roller are mounted on the surface of the drive shaft. A ring-shaped liner is located on the inner wall of the bottom end of the casing. A base is located below the casing. The first bushing is located inside the feed hopper, and a second bushing is embedded in the inner wall of the bottom end of the casing. A discharge port is located on one side of the bottom end of the casing. This low-energy cement preparation stone powder sand making device uses grinding tubes and grinding rollers installed inside the upper part of the machine casing to comprehensively grind materials. After grinding, the impeller drives the ground material to impact the liner plate, thereby achieving more comprehensive crushing and sand making and reducing energy consumption. However, this low-energy cement preparation stone powder sand making device generates dust during operation, which flies everywhere and affects the surrounding environment and the health of workers. Utility Model Content
[0003] To address the problems in the existing technology, this utility model provides a stone powder sand making device for cement preparation.
[0004] The technical solution adopted by this utility model to solve its technical problem is a stone powder sand making device for cement preparation, including a sand making device body. A support is provided on one side of the feed hopper of the sand making device body. A gas collecting pipe is fixed on the side of the support away from the feed hopper. A retaining sleeve is provided at the air inlet of the gas collecting pipe. First retaining rings are fixed inside both the retaining sleeve and the gas collecting pipe. A first filter screen, a second filter screen, and a second retaining ring are provided between the two first retaining rings. The second retaining ring is located between the first filter screen and the second filter screen. A bearing is provided inside the gas collecting pipe. Both sides of the bearing are fixed with support rods, and the ends of the two support rods away from the bearing are connected to the air collecting pipe. A vertical rod is fixed inside the bearing, and a fan blade is fixed at the top of the vertical rod. A connecting rod is fixed on the drive shaft of the main body of the sand making device. Pulleys are fixed on both the connecting rod and the vertical rod. The two pulleys are connected by a belt. The air collecting pipe is provided with a through groove for the belt to pass through. A cloth sleeve is fixed on the discharge hopper of the main body of the sand making device. A motor is fixed inside the main body of the sand making device, and the output shaft of the motor is connected to the drive shaft through a coupling.
[0005] By adopting the above technical solution, the output shaft of the motor drives the transmission shaft to rotate during the sand making process. The transmission shaft drives the connecting rod to rotate, and with the cooperation of the pulley and belt, the upright and fan blades rotate. Under the action of negative pressure, the dust generated during the sand making process enters the sleeve. The first and second filter screens filter the dust, and the filtered air is discharged through the air collection pipe. During material discharge, the cloth sleeve can form a barrier between the discharge hopper and the collection container, which is conducive to material discharge and reduces the impact of dust on the environment and workers' health.
[0006] Specifically, the air inlet of the air collecting pipe is provided with an external thread, and the end of the ferrule near the air collecting pipe is provided with an internal thread that matches the external thread.
[0007] By adopting the above technical solution, the ferrule can be removed from the air collection pipe by rotating the ferrule, making it convenient to remove the first filter, the second retaining ring, and the second filter for cleaning or replacement.
[0008] Specifically, the end of the ferrule furthest from the gas collecting pipe has two handles fixed on it.
[0009] By adopting the above technical solution, the handle makes it convenient to rotate and put in / out the card sleeve.
[0010] Specifically, a rubber protective sleeve is provided inside the channel, and the outer wall of the protective sleeve is connected to the gas collection pipe by an adhesive.
[0011] By adopting the above technical solution, the protective sleeve can protect the belt and prevent the air collection pipe from scratching the belt.
[0012] Specifically, the support is connected to the feed hopper by bolts, and the gas collecting pipe is welded to the support.
[0013] The beneficial effects of this utility model are:
[0014] (1) The stone powder sand making device for cement preparation described in this utility model has a motor output shaft that drives the transmission shaft to rotate during the sand making process. The transmission shaft drives the connecting rod to rotate. With the cooperation of the pulley and belt, the upright and fan blades rotate. Under the action of negative pressure, the dust generated during the sand making process enters the sleeve. The first filter screen and the second filter screen filter the dust. The filtered air is discharged through the air collection pipe. When discharging, the cloth sleeve can form a barrier between the discharge hopper and the collection container, which is conducive to the discharge and reduces the impact of dust on the environment and workers' health.
[0015] (2) The stone powder sand making device for cement preparation described in this utility model has a handle that allows for easy rotation of the ferrule. Rotating the ferrule allows the ferrule to be removed from the gas collecting pipe, making it convenient to remove the first filter screen, the second retaining ring, and the second filter screen for cleaning or replacement. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a cross-sectional view of the combination of the ferrule and the gas collecting tube of this utility model;
[0019] Figure 3 For the present utility model Figure 1 Enlarged view of the structure at point A in the middle;
[0020] Figure 4 For the present utility model Figure 1 Enlarged view of the structure at point B.
[0021] In the diagram: 1. Main body of the sand making device; 2. Feed hopper; 3. Support; 4. Air collecting pipe; 40. Protective sleeve; 5. Clamping sleeve; 50. Handle; 6. Discharge hopper; 7. Cloth sleeve; 8. Motor; 9. Drive shaft; 10. Connecting rod; 11. Pulley; 12. Belt; 13. Support rod; 14. Bearing; 15. Vertical rod; 16. Fan blade; 17. First filter screen; 18. Second filter screen; 19. First retaining ring; 20. Second retaining ring. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] To facilitate dust collection, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3As shown, the present invention discloses a stone powder sand making device for cement preparation, comprising a main body 1. A support 3 is provided on one side of the feed hopper 2 of the main body 1. A gas collecting pipe 4 is fixed on the side of the support 3 away from the feed hopper 2. A retaining sleeve 5 is provided at the air inlet of the gas collecting pipe 4. First retaining rings 19 are welded and fixed inside both the retaining sleeve 5 and the gas collecting pipe 4. A first filter screen 17, a second filter screen 18, and a second retaining ring 20 are provided between the two first retaining rings 19. The second retaining ring 20 is located between the first filter screen 17 and the second filter screen 18. A bearing 14 is provided inside the gas collecting pipe 4. Support rods 13 are welded and fixed on both sides of the bearing 14. The ends of the two support rods 13 away from the bearing 14 are welded to the gas collecting pipe 4. A vertical rod 15 is fixed inside the bearing 14, and a fan blade 16 is welded to the top of the vertical rod 15. A connecting rod 10 is welded to the drive shaft 9 of the sand making device body 1. A pulley 11 is fixed to both the connecting rod 10 and the vertical rod 15. The two pulleys 11 are connected by a belt 12. The gas collecting pipe 4 is provided with a through groove for the belt 12 to pass through. A cloth sleeve 7 is fixed to the discharge hopper 6 of the sand making device body 1 by adhesive. A motor 8 is fixed inside the sand making device body 1 by bolts. The output shaft of the motor 8 is connected to the drive shaft 9 by a coupling.
[0024] In use, the main body 1 of the sand making device is existing technology, so other components such as grinding rollers and impellers are not shown. The output shaft of the motor 8 drives the transmission shaft 9 to rotate. During the sand making process, the transmission shaft 9 drives the connecting rod 10 to rotate. With the cooperation of the pulley 11 and the belt 12, the upright 15 and the fan blade 16 rotate. Under the action of negative pressure, the dust generated during the sand making process enters the sleeve 5. The first filter screen 17 and the second filter screen 18 filter the dust. The filtered air is discharged through the air collection pipe 4. When discharging, the cloth sleeve 7 can form a barrier between the discharge hopper 6 and the collection container, which not only facilitates the discharge but also reduces the generation of dust during the discharge, thereby reducing the impact of dust on the environment and workers' health.
[0025] To facilitate the removal of the first filter screen 17, the second filter screen 18, and the second retaining ring 20, the air inlet of the air collecting pipe 4 is provided with an external thread, and the end of the ferrule 5 near the air collecting pipe 4 is provided with an internal thread that matches the external thread.
[0026] When in use, simply rotate the sleeve 5 to remove it from the air collection pipe 4, making it easy to take out the first filter screen 17, the second retaining ring 20, and the second filter screen 18 for cleaning or replacement.
[0027] To facilitate rotating the sleeve 5, for example, as shown... Figure 4 As shown, the end of the ferrule 5 furthest from the gas collecting pipe 4 has two handles 50 welded and fixed.
[0028] To protect belt 12, for example, such as Figure 2As shown, a rubber protective sleeve 40 is provided in the through groove, and the outer wall of the protective sleeve 40 is connected to the gas collecting pipe 4 by an adhesive.
[0029] The support 3 is connected to the feed hopper 2 by bolts, and the gas collecting pipe 4 is welded to the support 3.
[0030] In use, the main body 1 of the sand making device is existing technology, so other components such as grinding rollers and impellers are not shown. The output shaft of the motor 8 drives the transmission shaft 9 to rotate during sand making (existing technology). The transmission shaft 9 drives the connecting rod 10 to rotate. With the cooperation of the pulley 11 and the belt 12, the upright rod 15 and the fan blade 16 rotate. Under the action of negative pressure, the dust generated during the sand making process enters the sleeve 5. The first filter screen 17 and the second filter screen 18 filter the dust. The filtered air is discharged through the air collection pipe 4. When discharging, the cloth sleeve 7 can form a barrier between the discharge hopper 6 and the collection container, which not only facilitates the discharge but also reduces the generation of dust during the discharge, thereby reducing the impact of dust on the environment and workers' health.
[0031] By rotating the sleeve 5 by holding the handle 50, the sleeve 5 can be removed from the air collection pipe 4, making it easy to remove the first filter screen 17, the second retaining ring 20, and the second filter screen 18 for cleaning or replacement.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents. Contents not described in detail in this utility model are considered prior art known to those skilled in the art.
Claims
1. A stone powder sand-making device for cement preparation, characterized in that, The device includes a sand making unit body (1), a support (3) is provided on one side of the feed hopper (2) of the sand making unit body (1), a gas collecting pipe (4) is fixed on the side of the support (3) away from the feed hopper (2), a sleeve (5) is provided at the air inlet of the gas collecting pipe (4), a first retaining ring (19) is fixed inside both the sleeve (5) and the gas collecting pipe (4), a first filter screen (17), a second filter screen (18) and a second retaining ring (20) are provided between the two first retaining rings (19), the second retaining ring (20) is located between the first filter screen (17) and the second filter screen (18), a bearing (14) is provided inside the gas collecting pipe (4), and support rods (13) are fixed on both sides of the bearing (14), the two support rods (13) 13) The ends away from the bearing (14) are all connected to the gas collection pipe (4). A vertical rod (15) is fixed inside the bearing (14). A fan blade (16) is fixed at the top of the vertical rod (15). A connecting rod (10) is fixed on the drive shaft (9) of the sand making device body (1). A pulley (11) is fixed on both the connecting rod (10) and the vertical rod (15). The two pulleys (11) are connected by a belt (12). A through groove is provided on the gas collection pipe (4) for the belt (12) to pass through. A cloth sleeve (7) is fixed on the discharge hopper (6) of the sand making device body (1). A motor (8) is fixed inside the sand making device body (1). The output shaft of the motor (8) is connected to the drive shaft (9) through a coupling.
2. The stone powder sand making device for cement preparation according to claim 1, characterized in that, The air inlet of the gas collecting pipe (4) is provided with an external thread, and the end of the ferrule (5) near the gas collecting pipe (4) is provided with an internal thread that matches the external thread.
3. The stone powder sand making device for cement preparation according to claim 1, characterized in that, Two handles (50) are fixed to the end of the sleeve (5) away from the gas collecting pipe (4).
4. The stone powder sand making device for cement preparation according to claim 1, characterized in that, The groove is provided with a rubber protective sleeve (40), and the outer wall of the protective sleeve (40) is connected to the gas collection pipe (4) by an adhesive.
5. The stone powder sand making device for cement preparation according to claim 1, characterized in that, The support (3) is connected to the feed hopper (2) by bolts, and the gas collecting pipe (4) is welded to the support (3).
Citation Information
Patent Citations
Low-energy-consumption stone powder sand making device for cement preparation
CN216094145U